Sunday 30 May 2021

Geo-reference an image

 This update to Challenger Expedition DIY Web Map is called an "inchworm" map, as monthly points appear to worm around the globe, with an inchworm's hump at times. This caught @miniboats eye on the approach to the expedition's 150th anniversary (see also a fascination Natural History Museum post here). 

As the afore-mentioned fan site is under reconstruction, why not add maps themselves until the excellent collection is restored? So I sent these instructions how to do so:

This extends the original post's DIY that will hopefully encourage you to add your own!

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